3648871242 has 24 divisors (see below), whose sum is σ = 7923055140. Its totient is φ = 1213649280.

The previous prime is 3648871229. The next prime is 3648871309. The reversal of 3648871242 is 2421788463.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 3624160401 + 24710841 = 60201^2 + 4971^2 .

It is a super-2 number, since 2×3648871242² = 26628522681389245128, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 211567 + ... + 228162.

Almost surely, 2^3648871242 is an apocalyptic number.

3648871242 is an abundant number, since it is smaller than the sum of its proper divisors (4274183898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3648871242 is a wasteful number, since it uses less digits than its factorization.

3648871242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440198 (or 440195 counting only the distinct ones).

The product of its digits is 516096, while the sum is 45.

The square root of 3648871242 is about 60405.8874779603. The cubic root of 3648871242 is about 1539.5229930418.

The spelling of 3648871242 in words is "three billion, six hundred forty-eight million, eight hundred seventy-one thousand, two hundred forty-two".